Stone-rake.



F. A. GARVIN.

STONE RAKE. AEFLICATIQN FILED AUG.26, was

Patented Apr. 17, 1917.

2 SNEETS SHEET I.

F. A. GARVJN.

STONE RAKE.

APPLICATION FILED AUG.26. 19: H

Patented Apr. 17, 1917.

2 SHEETS,HEET 2.

M E $16 arkz'n,

UNITED STATES PATENT OFFICE.

FRED A. GARVIN, OF WASHINGTON, DISTRICT (IF COLUMBIA.

STONE-RAKE.

Application filed August 26, 1916.

To all whom it may concern:

Be it known that I, FRED A. GAnVIN, a citizen of the United States,residing at Washington, District of Columbia, have invented certain newand useful. Improvements in Stone-Rakes; and I do hereby declare thefollowing to be at full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to new and useful improvements in a stone rakeand one of its objects is the provision of a device of this character,which shall be simple, durable and efficient, and which may bemanufactured and sold at a comparatively low cost.

Another object of this invention is to pro vide a frame mounted on apair of wheels and having a plurality of plows thereon for digging upstones embedded 1n the surface of the ground.

A further object of this invention is to provide endless conveyerscooperating with the plows to receive the stones dug up and the onescollected from the surface of the round for carrying them to a stonecollect mg receptacle located upon the frame, whereby stones may bereadily collected and deposited at a desired place.

A still further object of this invention is to provide means for raisingthe plows from an engagement with the ground when the stone receptaclehas been filled, so that the device may be rendered inoperative toprevent overloading of the receptacle.

With these and other objects in view as will become more apparent as thedescription proceeds, the invention consists in certain novel featuresof construction, combination and arrangement of parts as will behereinafter more fully described and claimed.

For a complete understanding of mv invention, reference is to be had tothe following description and accompanying drawings, in which Figure 1is a top plan view of a stone rake, constructed in accordance with myinvention,

Fig. 2 is a longitudinal sectional view of the same,

. Fig. 3 is a detail view partly in section of the stone collectingreceptacle,

Specification of Letters Patent.

Patented Apr. 17, 1917.

Serial No. 11' 3098.

Fig. 4 is a de1ail elevation of the means for raising and hwering theplow, and I Fig. 5 is a (let ail sectional View taken on the line 55 ofFig. 1.

Referring in detail to the drawings, the numeral 1 IlIldlCttGS asubstantially rectangular frame having secured adjacent the rear endthereof an axle 2having each end reduced to form. spindles 3 on whichare journaled squared sleeves 4. The squared sleeves 1 have fc rmed upontheir inner ends gears 5 and also have secured thereon ground wheels 6for supporting the frame 1. The frame 1 hits secured thereto verticalstandards 7 to which are secured upwardly inclined handles 8 which havetheir lower forward ends s :cured t0 the frame. The standards andhandles are connected together by a trar sverse bar 9.

A conveyer supporting member consisting of a plurality 01 parallelextending bars 10 are secured togel her by a transverse strip 11 and theouter he: 's of the series are of reater width than the remaining barsto cm a trough-like construction and each of the bars 10 is pivovallysecured to bracket 12 carried by the a: :le 2. The forward ends of thebars 10 are reduced and inclined downwardly to form plow points 13 whichare connected togetl er in V-shaped formation as clearly illustrated inFig. 1. A transverse shaft 14: is j ourr aled in the bars 10 adjacentthe plow points 13 and has mounted thereon gears 15 which rotatablysupport endless conveyers 16. The endless conveyers 16 are in turnmounted upon enlarged gears 17 carried by a drive shaft 18 which isjournaled within the frame 1 at a point rear of the axle 2 and has.mounted on each end gears 19 that mesh with the gears 5 for rotating theconveyers 16, so that when stones are dug up by the plow points 13 theyare caught by the conveyer; 16 and carried rearwardly.

A stone collecting receptacle 20 constructed from a plurality ofinterwoven wires is provided with supporting arms 21 on each end thereoffor overlying a portion of the rear end of the frame 1 adjacent theenlarged gears 17 so that the stones that are carried rearwardly by theconveyers may fall into the st me collectin receptacle 20. A rack 22 isserured to the rame 1 and has pivoted thereto a lever 23 having theusual hand grip 24 for operating the dog 25 which engages the teeth ofthe rack 22. An arm 26 is formed on the lever 23 and is pivotallysecured to the forward end of the conveyer supporting construction,whereby upon op erating the lever 23, the plow points 13 may be causedto engage and disengage the ground.

In operation, draft animals are fixed to the forward end of the frame 1in any suitable manner and by pushing the lever 23 forwardly, the plowpoints 13 will be lowered into an engagement with the ground. Uponforward movement of the device, the plow points will dig into the groundand dig up any stones that may be embedded in the ground near thesurface thereof, causing the stones to pass upwardly over the plowpoints on to the conveyers 16 thence they travel rearwardly into thestone collecting receptacle 20. After the stone collecting receptacle 20has been filled, the lever 23 may be drawn rearwardly raising the plowpoints from an engagement with the ground thus rendering the deviceinoperative to prevent overloading of the stone collecting receptacle.The device then may be driven to a convenient place and the stonecollecting receptacle 20 removed from the frame and emptied. If notdesiring to pull the device to a desired place, the stone collectingreceptacle 20 may be removed from the frame copies 01' this patent maybe obtained for and emptied into a wagon or cart which may be broughtadjacent thereto for carrying away the stones to a given point.

While I have shown and described the preferred embodiment of myinvention, it will be understood that minor changes in construction,combination and arrangement of parts may be made without departing fromthe spirit and scope of the invention as claimed.

Having thus described my I claim is A stone rake comprising a frame, anaxle secured to said frame, wheels carried by said axle, a conveyer rackpivoted to said axleand consisting of a plurality of parallel barshaving their forward ends reduced and connected together in'V-shapedformation to form plow points, a transverse strip connecting said barstogether, an endless conveyer mounted on said rack for receiving stonesfrom the plow points, and a stone invention, what collecting receptaclecarried by the rear end of the frame to receive the stones from theconveyers.

In testimony whereof I aflix my signature in presence of two witnesses.

FRED A. GARVIN.

Witnesses:

D. K. MILE-Y, JOHN W. SMITH.

five cents each, by addressing the Commissioner 0! Patents,

Washington, D. C.

